Journal ArticleDOI
Mineralogical and geochemical compositions of the coal in the Guanbanwusu Mine, Inner Mongolia, China: Further evidence for the existence of an Al (Ga and REE) ore deposit in the Jungar Coalfield
Shifeng Dai,Yaofa Jiang,Colin R. Ward,Landing Gu,Vladimir V. Seredin,Huidong Liu,Dao Zhou,Xibo Wang,Yuzhuang Sun,Jianhua Zou,Deyi Ren +10 more
TLDR
The No. 6 coal from the Guanbanwusu Mine, Jungar Coalfield, Inner Mongolia, the authors has a low rank (Ro,ran = 0.56%) and a low-sulfur content (St,d ǫ= 0.58%) and the proportion of inertinite in the coal is higher than that of vitrinite (31%).About:
This article is published in International Journal of Coal Geology.The article was published on 2012-08-01. It has received 235 citations till now. The article focuses on the topics: Coal combustion products & Coal.read more
Citations
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Sulfur in coals: A review of geochemistry and origins
TL;DR: In this article, a review of the evidence suggests that the variation of sulfur in coals is closely related to the depositional environments of coal seams, and the relationships between sulfur abundance in coal seams and depositional environment of coals were reviewed for cases from the U.S., China, China, U.K., Germany, Hungary, Turkey, Indonesia, and Brazil.
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Coal as a promising source of critical elements: Progress and future prospects
Shifeng Dai,Robert B. Finkelman +1 more
TL;DR: In this paper, coal is considered as an economic source of strategically important elements, such as Ge, Ga, U, V, Se, rare earth elements, Y, Sc, Nb, Au, Ag, and Re, as well as base metals Al and Mg.
Journal ArticleDOI
Analysis, origin and significance of mineral matter in coal: An updated review
TL;DR: In this paper, a review of the methods that may be used to evaluate the percentage of mineral matter for a coal sample, as opposed to the ash yield, and to identify the minerals, their individual percentages, and their modes of occurrence within the coal.
Journal ArticleDOI
Enrichment of U–Se–Mo–Re–V in coals preserved within marine carbonate successions: geochemical and mineralogical data from the Late Permian Guiding Coalfield, Guizhou, China
Shifeng Dai,Vladimir V. Seredin,Colin R. Ward,James C. Hower,Yunwei Xing,Weiguo Zhang,Weijiao Song,Peipei Wang +7 more
TL;DR: In this article, multi-element data on the super-high-organic-sulfur (SHOS; 5.19% on average) coals of Late Permian age from Guiding, in Guizhou Province, China.
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Coal deposits as promising sources of rare metals for alternative power and energy-efficient technologies
TL;DR: In this article, the authors present data on widespread abnormal accumulations in coal deposits of some rare metal(loid)s (Ge, Ga, Se, Li and REE+Y), which play a key role in energy-efficient technologies and alternative power development.
References
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Journal ArticleDOI
A profile refinement method for nuclear and magnetic structures
TL;DR: In this paper, a structure refinement method was described which does not use integrated neutron powder intensities, single or overlapping, but employs directly the profile intensities obtained from step-scanning measurements of the powder diagram.
The continental crust: Its composition and evolution
TL;DR: In this paper, the authors describe the composition of the present upper crust and deal with possible compositions for the total crust and the inferred composition of lower crust, and the question of the uniformity of crustal composition throughout geological time is discussed.
Journal ArticleDOI
Estimations of Clarkes for Carbonaceous biolithes: World averages for trace element contents in black shales and coals
M. P. Ketris,Ya. E. Yudovich +1 more
TL;DR: In this paper, the average trace element contents in the World black shales and coals and coal Clarke values are presented, based on comprehensive calculations using very large amount of information (thousands analyses of black shale, coals, and coal ashes for trace elements).
Journal ArticleDOI
The new inertinite classification (ICCP System 1994)
TL;DR: In the ICCP System 1994, the maceral group inertinite was enlarged to include seven macerals by replacing the former maceral sclerotinite by two others, called funginite and secretinite as mentioned in this paper.
Journal ArticleDOI
Geochemistry of trace elements in Chinese coals: A review of abundances, genetic types, impacts on human health, and industrial utilization
TL;DR: The background values of trace elements were dominated by sediment source regions in coal-bearing strata in China as mentioned in this paper, and the genetic types for trace-element enrichment of Chinese coals include source-rock- controlled, marine-environment-controlled, hydrothermal-fluid-controlled (including magmatic-, low-temperature-hydrothermalfluid-, and submarine-exhalation-controlled subtypes), groundwater-controlled and volcanic-ash-controlled.
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